def assignIso(self, date, iso, committer):
"""Tries to assign an iso to the burner.
Returns true if the operation was succesful, that is: the burner is
burning."""
try:
try:
connection = common.RequestMaker(self.ip, self.port)
except socket.error, e:
raise common.BurnerException, "assignIso: Socket error: " + \
str(e)
network.handshake(connection)
connection.send("%s\n%s\n%s\n%s\n" %
(common.MSG_REQUEST_BURN, date, iso, committer))
data = connection.readLine()
if data == common.MSG_ACK:
retval = True # Succesful!
self.free = False
self.iso = iso
self.committer = committer
elif data == common.MSG_NO_SUCH_ISO:
self.logger.debug("No such ISO: %s" % iso)
retval = False
else:
raise common.BurnerException, \
("Strange data from burner: \"%s\"" % data)
def close(self):
"""Closes the connection with the burner."""
if not self.free:
self.logger.error("close: Closing the connection but the burner " \
"is still working")
try:
connection = common.RequestMaker(self.ip, self.port)
network.handshake(connection)
connection.send(common.MSG_CLOSING + "\n")
data = connection.readLine()
if data != common.MSG_ACK:
raise common.BurnerException, \
"close: Server doesn't want to tell us goodbye: " \
"\"%s\"" % data
connection.close()
self.logger.debug("Connection closed.")
except common.BurnerException, e:
self.logger.error("close: " + str(e))
